See, I don't think Spielberg will let it get to PT-depths
We have George Lucas there, and that will automatically create a PT-like environment. Spielberg has directed rather lousy films such as 1941, The Lost World: Jurassic Park, and War of the Worlds. And Spielberg is working with a revisionist-era dictator (Lucas again), so we could see at least 50-75 different continuity errors within the already established IJ trilogy with the relase of the Kingdom of the crystal skull (KOTCS). This could end up to film historians in the future as the worst film Spielberg has directed. It's just as exactly as we speculated about ROTS in 2004: we hoped it would be good because it was to be closer to the OOT. Now three years later, we discovered we recieved the worst of the worst of the PT, and we have destroyed film history. With KOTCS, we could have something more or less worse than ROTs itself.